Ideal for baking or molding. Fat Daddio's uses only FDA-approved silicone materials and seals their bakeware with a high temperature process. This technology creates a surface that is naturally non-stick. In fact, Fat Daddio's recommends that you never use any grease or release coating as this will degrade the natural surface of the silicone. Affordable, yet highly effective, this silicone bakeware has a temperature range from -40 degrees F to 550 degress F. Used by commercial bakers worldwide.